DESK // INTAKE & REPAIRLOCAL BUFFER ACTIVE

CTET Photo & Signature Resizer (2026)

Compress photo (10KB to 100KB, 3.5×4.5 cm) and signature (3KB to 30KB, 3.5×1.5 cm) for CBSE CTET online registration.

100% In-Browser Memory

|Zero Server Transfer|Govt & Portal Compliant

Quick Answer:CBSE Central Teacher Eligibility Test (CTET) requires a photograph between 10KB and 100KB (3.5 × 4.5 cm) and a signature between 3KB and 30KB (3.5 × 1.5 cm) in JPG format.

TARGET60 KB

MODECTET/NET Photo

QUEUEEMPTY

FORMATJPEG (STANDARD)

100% IN-BROWSER

COMPRESSION ENGINE MODE

STEP 1: SELECT EXAM OR PORTAL

STEP 2: SELECT DOCUMENT TYPE

CTET/NET Photo Specification Locked

Range: 10KB to 100KB

Target Size60 KB

Dimensions350 × 450 px (3.5 × 4.5 cm)

Output FormatJPEG (Stripped EXIF)

Portal FitMatches Specification

PORTAL VALIDATION RULES:

File size: strictly 10KB to 100KB in JPG/JPEG format.
Clean white or light background.
Face covering ~80% of canvas with clear ears.

Auto-format dimensions to 350 × 450 px (3.5 × 4.5 cm)brushEnhance Dark Ink on Phone Scans (Ink Boost)

INTAKE // DROP FILES ON DESK

Select or Drop Images

Drop photo, signature, or up to 5 files at once. 100% in-browser, zero server uploads.

JPG / PNG / WEBP / HEIC·BATCH UP TO 5 FILES·MAX 10 MB EACH

100% Client-Side Privacy

Zero Server Uploads

Exact Portal Validation Fit

SYSTEM.SPECIFICATIONS

Official CBSE CTET Document Specifications (2026)

Official document specifications compiled from 2026 notifications for Central Board of Secondary Education (CTET).

Verified: October 2026Source: CBSE CTET Information Bulletin (ctet.nic.in)Official Notification Verification Policy →

Document Type	Allowed KB Size	Dimensions	Format	Special Rules & Guidelines
Passport Photograph	10 KB to 100 KB	3.5 × 4.5 cm (~350 × 450 px)	JPEG / JPG	White/light background; clear frontal face view; recent color photograph.
Candidate Signature	3 KB to 30 KB	3.5 × 1.5 cm (~350 × 150 px)	JPEG / JPG	Black ink on clean white unruled paper; running handwriting only.

SYSTEM.PROCEDURE

How to prepare documents for Central Board of Secondary Education (CTET)

STEP 01
Select your candidate photo or signature image.
STEP 02
Select CTET Photo (10-100KB) or CTET Signature (3-30KB) preset.
STEP 03
Download the validated JPG file ready for ctet.nic.in upload.

WORKED.EXAMPLE

Resizing a Scanned Photo to CTET 65KB

ORIGINAL FILE1.9MB image from mobile camera

TOOLKB OUTPUT64.2KB, 350 × 450 px, compliant JPEG

How it fits: The photo is resized to 3.5 × 4.5 cm proportion and compressed to 64.2KB, within CTET's 10KB to 100KB range.

SYSTEM.TROUBLESHOOTING

Why is the portal rejecting my upload?

Most application rejections are caused by hidden dimension or background mismatches rather than KB limits alone.

Issue 1

File size below 10KB rejected by CBSE server

Cause: Compressing too heavily below CTET's 10KB minimum limit.

Fix: Use ToolKB's CTET preset which targets 50KB for pristine clarity.

Issue 2

Signature file size below 3KB or above 30KB rejected

Cause: File size falls outside CTET's 3 to 30KB range.

Fix: ToolKB's CTET Signature preset sets target to 15KB.

Issue 3

Manual mobile crop distorting aspect ratio

Cause: Non-standard crop stretching face.

Fix: ToolKB automatically locks the 3.5 × 4.5 cm passport ratio.

Issue 4

Dim indoor lighting casting facial shadows

Cause: Shadows obscuring facial recognition.

Fix: Take photo in daylight facing a light source.

Issue 5

Faint ballpoint pen signature failing OCR

Cause: Light ink strokes.

Fix: Enable Ink Boost above to deepen signature lines.

Issue 6

iPhone HEIC format error on ctet.nic.in

Cause: CBSE only accepts standard JPEG.

Fix: ToolKB converts HEIC to JPG automatically.

SYSTEM.FAQ

Frequently Asked Questions

What are the photo size limits for CTET 2026?

The photograph must be between 10KB and 100KB in JPG format with dimensions of 3.5 × 4.5 cm.

What is the signature size range for CBSE CTET?

The signature must be between 3KB and 30KB with dimensions of 3.5 × 1.5 cm in JPG format.

What pen should I use to sign for CTET?

Use a black ink pen on clean unruled white paper.

Can I upload the same photo for CTET Paper 1 and Paper 2?

Yes, single registration covers both papers.

Does CTET require a name or date printed on the photo?

No, CTET does not mandate name/date on the photo, but clean white background is required.

How do I fix the 'Invalid Image Dimensions' error on ctet.nic.in?

Select the CTET preset on ToolKB to ensure dimensions match 350 × 450 px exactly.

HINGLISH GUIDE

Central Board of Secondary Education (CTET) ke liye photo aur signature ka size kaise kam kare?

Mobile ya Computer se Photo 20KB / 50KB me kaise banaye:
Agar aap Central Board of Secondary Education (CTET) ka online registration form bhar rahe hain aur photo ya signature upload karte waqt error aa raha hai, to ToolKB par asani se exact size bana sakte hain:

Upar diye gaye tool me Select Image par click karke apna photo ya signature upload karein.
Preset Mode me CTET & NET option automatically active hai, jo official notification ke anusaar exact pixel width, height aur KB range set karta hai.
Processing complete hone ke baad Download button par click karein.
Aapka photo bina kisi quality loss ke turant browser me tayar ho jayega.

100% Privacy Guarantee: ToolKB me aapka photo ya document kisi server par nahi jata; sara compression aapke mobile/browser me hi hota hai.

EXAM.DIRECTORY